Manually roasting coffee can be useful when you don’t have a choice and you want to learn the coffee roasting process. You will need a real hot pot on about 360F and keep stirring the beans non-stop until you hear the ‘cracks’. The cracks usually start at about 10-15min depending on the coffee bean profile you’re trying.
As you can see the roasting of these beans did not come out even. This can be due to many reasons. The coffee bean size, temperature, how much did you stir the coffee beans, etc. Always pre-heat your cooking pot before you start the coffee roasting process at home.